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Martinez, JavierCorresponding Author

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December 16, 2025
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Synthesis of Crosslinked Biopolyesters Catalyzed by Natural Amino Acids

Publicated to: Asian Journal of Organic Chemistry. 14 (9): - 2025-06-29 14(9), DOI: 10.1002/ajoc.202500475

Authors:

Frances-Poveda, Enrique; Montiel, Abigail; Douglas-Gallardo, Oscar A; Moya-Lopez, Carmen; Mahecha, Genesys L; Flores, Mario E; Cruz-Martinez, Felipe de la; Werlinger, Francisca; Martinez, Javier; Lara-Sanchez, Agustin
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Affiliations

Univ Austral Chile, Inst Ciencias Quim, Fac Ciencias Isla Teja, Valdivia 5090000, Chile - Author
Univ Castilla La Mancha, Fac Ciencias & Tecnol Quim, Ctr Innovac Quim Avanzada ORFEO CINQA, Dept Quim Inorgan Organ & Bioquim, Ciudad Real 13071, Spain - Author
Univ Castilla La Mancha, Fac Farm, Ctr Innovac Quim Avanzada ORFEO CINQA, Dept Quim Inorgan Organ & Bioquim,Unidad Nanodrug, Albacete 02071, Spain - Author
Univ Castilla La Mancha, Inst Reg Invest Cient Aplicada, IRICA, Ciudad Real 13071, Spain - Author
Univ Chile, Fac Ciencias Quim & Farmaceut, Dept Quim Organ & Fisicoquim, Santiago 8380492, Chile - Author
Univ Concepcion, Fac Ciencias Quim, Dept Quim Organ, Campus Concepcion,Edmundo Larenas 129, Concepcion 4030000, Chile - Author
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Abstract

Epoxidized sunflower oil (ESO), derived from waste sunflower oil (WSO), was copolymerized with various biobased cyclic anhydrides via ring-opening copolymerization (ROCOP) reaction to produce highly crosslinked polyesters. This catalytic synthesis was performed by a metal-free catalyst system formed by natural amino acid (L-glutamic acid) and tetrabutylammonium iodide (TBAI). The resulting bio-polyesters, obtained as jelly-like disks, were thoroughly characterized using multiple techniques such as FT-IR, TGA, and DSC. The presence of a crosslinked network in the biobased polymers was assessed by dynamical mechanical analysis (DMA) and at room temperature the rubbery state of crosslinked materials was observed. These materials demonstrated complete degradability when treated with a 1 M aqueous sodium hydroxide solution. In addition, density functional theory (DFT) calculation was employed to elucidate the polymerization mechanism, focusing on the activation stage of the polymerization process. This study provides valuable insights into the catalytic efficiency and mechanistic details of the polymerization process, highlighting the potential of sustainable, metal-free catalysts for producing degradable biopolyesters.
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Keywords

Crosslinked biopolyesterEpoxidesImprovementOilOrganocatalysisPolyestersPolymerizationRocop

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Asian Journal of Organic Chemistry due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2025, it was in position 16/57, thus managing to position itself as a Q2 (Segundo Cuartil), in the category Chemistry, Organic. Notably, the journal is positioned en el Cuartil Q2 para la agencia Scopus (SJR) en la categoría Organic Chemistry.

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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-08:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 4 (PlumX).
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Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Chile.

the author responsible for correspondence tasks has been MARTINEZ RODRIGO, JAVIER.

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Awards linked to the item

We gratefully acknowledge the financial support; grants PID2023-147240OB-I00 funded by MICIU/AEI/10.13039/501100011033 and by FEDER, UE, grant RED2022-134287-T funded by MCIN/AEI, grants SBPLY/21/180501/000132 funded by Junta de Comunidades de Castilla-La Mancha and by the EU through "Fondo Europeo de Desarollo Regional" (FEDER), and grant 2021-GRIN-31240 funded by Universidad de Castilla-La Mancha. F.W. is grateful for FONDECYT Postdoctoral fellowship 3220023. J.M. is grateful for FONDECYT Iniciacion fellowship 11230124 and FOVI230027.
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